South Riochi's sushi shop is a small body of water. You'll find another bottle hovering on a pole there.
Follow the street back here as it heads east, and you'll spot another Clue Bottle on an awning.
In front of the sushi shop is a statue. Scale it to collect another Clue Bottle.
A rope runs northeast from a rooftop near the statue to the massive dragon gate. Head up there to find a Clue Bottle right by the sealed entrance.
West of the gate is a covered bridge way. Atop it rests another bottle.
Far below, but just south of the covered bridge way is a series of rocks. Drop down there to find another Clue Bottle.
Return to the dragon gate and cross the northern rope to find the next bottle.
To the northeast is a river with protruding poles. One of them sports a Clue Bottle.
The large building in this area has a path that cuts through it. You'll find a Clue Bottle in here.
Follow the path north to pass under the bridge and find a walkway. There's another bottle along the boardwalk.
As the path wraps around, you'll see building with an attached waterwheel. On its roof is another Clue Bottle.
Just north of here is a super long rope. Cross it to find the final Clue Bottle.
Now you can unlock the Safe - found near Clue Bottle #6 - to get Coopergiwa's Gold Magnet, which attracts coins.